<div style="width: 200px; float: left; background: green; color: yellow">
<?php

if(isset($sieuhot) || isset($list_top))
{
    echo $sieuhot."<br/>";
    echo $list_top;
}
if(isset($login))
{
    echo $login;
}
if(isset($top10hot))
{
    echo $top10hot;
}
?>

</div>